Na pravcu dane su točke

,

,
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redom i neka je
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točka u beskonačnosti na danom pravcu. Ako je

i

, koliko iznosi
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?
Let

,

,
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be points on a line in that order, and let
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be a point at infinity on that line. If

and

, what is the value of

?
[lang=hr]
Na pravcu dane su točke $A$, $P$, $B$ redom i neka je $Q$ točka u beskonačnosti na danom pravcu. Ako je $AB=69$ i $BP=23 $, koliko iznosi $(A,B;P,Q)$ ?
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[lang=en]
Let $A$, $P$, $B$ be points on a line in that order, and let $Q$ be a point at infinity on that line. If $AB =69$ and $BP=23$, what is the value of $(A,B;P,Q)$ ?
[/lang]